Error: Data structure returned is not convertible in the requested format. Try to call this method with the parameters '&format=original&serialize=1'; you will get the original php data structure serialized. The data structure looks like this:
$data = array (
0 =>
array (
'category' => 'Visitors',
'name' => 'Country',
'module' => 'UserCountry',
'action' => 'getCountry',
'dimension' => 'Country',
'documentation' => 'This report shows which country your visitors were in when they accessed your website.',
'metrics' =>
array (
'nb_visits' => 'Visits',
'nb_uniq_visitors' => 'Unique visitors',
'nb_actions' => 'Actions',
),
'metricsDocumentation' =>
array (
'nb_visits' => 'If a visitor comes to your website for the first time or if he visits a page more than 30 minutes after his last page view, this will be recorded as a new visit.',
'nb_uniq_visitors' => 'The number of unduplicated visitors coming to your website. Every user is only counted once, even if he visits the website multiple times a day.',
'nb_actions' => 'The number of actions performed by your visitors. Actions can be page views, internal site searches, downloads or outlinks.',
'nb_actions_per_visit' => 'The average number of actions (page views, site searches, downloads or outlinks) that were performed during the visits.',
'avg_time_on_site' => 'The average duration of a visit.',
'bounce_rate' => 'The percentage of visits that only had a single pageview. This means, that the visitor left the website directly from the entrance page.',
'conversion_rate' => 'The percentage of visits that triggered a goal conversion.',
),
'processedMetrics' =>
array (
'nb_actions_per_visit' => 'Actions per Visit',
'avg_time_on_site' => 'Avg. Time on Website',
'bounce_rate' => 'Bounce Rate',
),
'metricsGoal' =>
array (
'nb_conversions' => 'Conversions',
'revenue' => 'Revenue',
),
'processedMetricsGoal' =>
array (
'revenue_per_visit' => 'Revenue per Visit',
),
'imageGraphUrl' => 'index.php?module=API&method=ImageGraph.get&idSite=7&apiModule=UserCountry&apiAction=getCountry&token_auth=anonymous&period=day&date=today',
'imageGraphEvolutionUrl' => 'index.php?module=API&method=ImageGraph.get&idSite=7&apiModule=UserCountry&apiAction=getCountry&token_auth=anonymous&period=day&date=2015-07-04,2015-08-02',
'uniqueId' => 'UserCountry_getCountry',
),
);